Friction modifier comprising metal sulfonate and lubricating...

Details Friction modifier comprising metal sulfonate and lubricating... Friction modifier comprising metal sulfonate and lubricating...

C - Chemistry, Metallurgy

10

M

C10M 135/10 (2006.01) C10M 159/24 (2006.01)

Patent

CA 2235701

Novel metal sulfonates having friction reducing ability and also various lubricating oil compositions containing the metal sulfonates are disclosed. The metal sulfonates which provide a friction modifier comprise a metal sulfonate composed of an organic sulfonic group, which contains a hydrocarbon group, and a metal. The hydrocarbon group of the organic sulfonic group is a chain hydrocarbon group or an aromatic group with at least one chain hydrocarbon group bonded thereto. The chain hydrocarbon group has an alkyl chain linearity of 20% or higher as determined by a carbon nuclear magnetic resonance measurement (13C-NMR measurement). Lubricating oil compositions added with the metal sulfonate are also provided.

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